Police say they will clamp down on clubs in the city centre to ensure the businesses are complying with bylaws - and if not, the establishments could face closure.

Yesterday police spokesman Andre Traut said drug dealing within the city centre would also be focused on in the coming weeks.

He said Abraham Goss, commander of the Cape Town cluster of police stations, had started "zero tolerance operations" with other security bodies, aimed at entertainment establishments within the City Bowl.

"(Goss) has warned club and lounge owners to comply with their licence conditions, non-compliance will result in issuing of fines and closing down business premises," Traut said.

Goss appealed to owners of club, lounge and restaurant licences to comply with the Firearms and Liquor act.

Traut warned patrons of city clubs that unruly behaviour outside of the establishments could result in arrest.

"Regular integrated clandestine operations will be conducted in the CBD to address the abuse of and dealing in drugs," he said.

"We want parents of matriculants to be aware of their envisaged matric farewell after parties, during which we usually experience problems of alcohol abuse," he said.

During the first operations a week ago, establishments in Long Street, Shortmarket Street and Loop Street were focused on.

Traut said the police's provincial firearm and liquor unit had inspected the premises and managers had been warned.

A number had also been fined for failing to display their liquor licences, failing to maintain their fire extinguishers and not complying with by-laws, including the fire safety one, he said.

Last week Traut had said police would also monitor the bouncer industry.

At the start of this year police arrested 13 bouncers operating in Long Street as they were allegedly not registered with the Private Security Regulatory Authority (Psira), which is required by law.